Home / 3,226.90-4,842.15-1,377.70

Finding the Fourth Proportional to 3,226.90, 4,842.15 and 1,377.70

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Solution

The fourth proportional to 3,226.90, 4,842.15 and 1,377.70 is: 2,067.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,226.90 : 4,842.15 = 1,377.70 : x
  2. Step 2: Convert to fraction form
    3,226.90/4,842.15 = 1,377.70/x
  3. Step 3: Cross multiply
    3,226.90x = 4,842.15 × 1,377.70
  4. Step 4: Simplify right side
    3,226.90x = 6,671,030.06
  5. Step 5: Solve for x
    x = 6,671,030.06/3,226.90
  6. Step 6: Final answer
    x = 2,067.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.